Yamaha DG Stomp won't power up

[richmondscribe]

DG Stomp was working fine, then the LED display went to 3 dashes and the utility LED lit up. Switched the unit off then tried to re-power but no lights, no nothing. Replaced battery to no avail. This had happened previously (2 months ago) and next day all was working properly again. Tried a different power adaptor but no go. Any suggestions? Thanks!

[richmondscribe]

Problem solved!

Gave the power switch and pots a shot of contact cleaner...working fine (for now).